Shaft-packing.



G. B. REARICK. SHAFT PACKING.

AAAAAAAAAA N FILED APB.2o,19'12. 1,047,988, Patented Dec. 24, 1912.

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CHARLES IBEMIS REARICK, OF NEW YORK, N. Y.

SHAFT-PACKING.

Specification of Letters Patent. `Patented Dec 24, 1912 .Applicationfiled April 20, 1912. Serial-No. 691,986.

To all 'whom 'it may concern:

Be it known that I, CHARLES BnMIs REARICK, a citizen of the UnitedStates, and resident. of the city, county, and State of New York, havemade a certain new and useful Invention Relating to Shaft or RodPackings, of which the following is a specification, taken in connectionwith the accompanying drawing, which forms part of the same. l

This invention relates especially to packings for shafts, rods or thelike which may comprise a packing housing made in a plurality ofsections and adapted -to be secured to the corresponding bearingsections and alined with respect thereto as by holding a dovetail orother suitable retainer on the housingin position in `a recess in thebearing by casting Babbit metal therein, for eX- ample. Within thesectional packing housing a suitable packing ring may be mounted forcooperation with the shaft or rod o r with a suitable sleeve used inconnection therewith.

In the accompanying drawing showing in a somewhat diagrammatic wayseveral illust-rative embodiments of this invention, Figure 1 is alongitudinal sectional view through one form of the invention. Fig. 2 isan enlarged partial section thereof. ,Fig 3 is .a transverse sectionofthe same; and Fig. 4 1s a longitudinal section showing a modified formof packing.

These packings may be mounted in the cooperating bearing members orcasings by providing a suitable sectional housing preferably dividedinto. sections corresponding with the sections of the bearing member orcasing and respectively secured in proper alinement therewith. Thus whenassembled the packing housing is continuous and is adapted to properlysupport and hold in alinement a suitable packing ring which may coperatewith a rotating shaft or reciprocating rod orwith a suitable sleeve assometimes ,used in connection with such shafts, for instance. In Fig. 1the packing is shown in connection with a steam turbine for which it isespecially adapted, the turbine casing being as indicated formed of aplurality of longitudinally divided sections having the externalpartitions 2 and 6 and any desired number of cooperating internalpartitions 12 and 26 forming suitable wheel chambers, such as 3 and 5.The shaft 1 on which suitable turbine wheels 4 may be mounted by theirhubs 14 is shown as passing longitudinally through the casing andcoperating with suitable packing mounted in these partitions or in thecase of the outside partitionon a suitable inwardly pro- ]ecting supportsuch as 10 if desired, this packing preventing leakage, of steam alongthe Shaft.

The sections 12 and 26 of the casing partitions may be formed in anydesired way, as for instance when originally casting them withsuitabledovetail recesses to accommodate the dovetail projections or retainers19 on the packing housing 16 which may be machined to the desired sizeand divided into corresponding sections, which may be accuratelypositioned with respect to the casing sections as by temporarilysecuring them to a shaft or suitable jig supported from the casing as inbearings such as 31, the sections of the packing housing being thenpermanently secured in position as by casting or forcing into thedovetail recesses suitable Babbit or other fusible retaining metal orlmaterial 15 which firmly holds the parts in alined position. If desired,however, the housing sections may be accurately positioned by formingcircumferential alining portions 29 on them to cooperate with thevcircumferential faces of the alined axial bore 28 through the casingpartitions or other cooperating part of the bearing members so as tomore definitely insure the alinement of the housing sections, while theyare permanently secured in position in the manner indicated, forinstance. If desired, the shaft 1 may be provided with a suitablebearing sleeve, such as 7, to coperate with the packing ring and thisbearing sleeve may be held in position between the wheel hubs 14 byforming the calking grooves 27 in the sleeve. Any `suitable metallicacking may be mounted within the pac ing housing, the sectional packingringv 17 being illustrated as formed with a suitable butt lapped. joint8, the ring sections being held in position in any desired way'as by theinclosing spring ring 18 which may be snapped in place around thesections of the packing ring. Another method of holding the packing inposition is shown in Fig. 4 in which the bearing portions 12 and 26 ofthe casing partitions are shown as formed with a suitable alined recessor bore lwhich may beh machined so as to directly tit or accommo- .datethe alined portion 30 of the packing said housing 16 which may be firmlysecured therein as by the calking grooves 9. rlhis packing housing mayaccommodate a Apacking ring of any desired construction and va similarform of packing ring 17 as illustrated therein.

Having described this invention in con-l nection with a number ofillustrative embodiments, proportions, forms, materials and arrangementsof parts, to the details of Which disclosure the invention is not ofcourse to be limited, what is claimed as new and What is desired to besecured by Letters Patent is set forth in the appended claims.

1. The packing for elastic fluid turbines or the like having alongitudinally divided casing provided With? partitions forming Wheelchambers and a Wheel shaft operating in said casing, said casingpartitions being formed with cast dovetail recesses and alined innercircumferential faces, a packing housing formed in sectionscorresponding to the sections of said casing and having alining portionscooperating with said alined inner faces and having dovetail retainersin said dovetailrecesses, said packing housing being held in alinedposition by metal run in molten condition into said :dovetail recesses,and a sectional packing ring in said housing.

2. The packing or turbines or the like having a longitudinally dividedcasing provided With partitions and a shaft operating in said casing,said casing a'rtitions being formed with recesses and a ined innercircumferential faces, formed in sections corresponding to the sectionsof said casing and having alining portions coperating with said alinedinner' faces and having retainers in said recesses, packing housingbeing held in alined position by metal run in molten condition lnto saidrecesses, and a sectional packing ring in said housing.

`3. The packing for turbineshafts mounted in a longitudinally divided casing comprising a packing housing divided into sections corres ondingtogthe sections of the casing and ormed With an alining portloncooperating With the alined bore through the casing and with a dovetailretainer, the casing sections being formed with a dovetail recess toaccommodate said retainer and retaining metal cast into said recess tohold said retainer therein and maintain said acking housing in alinementWith said casmg and a. sectlonal packing ring mounted Withinsaidhousing.

4;. The packing for turbine shafts mount-- ed in a longitudinallydivided casing'com-'- prising a packing housingdivided into sec'-I tionscorrespondlng to the sections of the casing and formed WithV analiningportion cooperating with the alined bore through the casing andwith a retainer, the casing a packing housing I sections being formedWi-th a recess to accommodate said retainer and retaining material insaidrecess to hold said retainer therein and maintain said packinghousing in alinement With said casing.

5. The packing for turbine shafts mounted in a longitudinally dividedcasing comprising a packing housing divided into sections correspondingto the sections of the casing and formed With an alining portioncoperating with an alined portion of the adjacent casing sections andmeans to hold said packing housing in alinemen-t with said casing and asectional packing ring mounted within'said housing.

.6. The packing for turbine shafts mounted in a dividedcasing comprisinga packing housing divided into sections corresponding -to the sect-ionsof the casing and zi formed With an alining portion cooperating With analined portion of the" adjacent casing sections and means to hold saidpacking housing in alinement with said casing and packing mounted Withinsaid housing.'

7. The packing for shafts or rods comprising bearing members, a packinghousing formed in sections corresponding to the sectionsof thecooperating bearing-members, said housing having an alining portioncooperating With an alining portion of said bearing members'and having aretainer co- V operating With a recess in said bearing members, means tohold said retainer Within said recess and packing cooperating with'having a retainer cooperating with a recess in said bearing members andretaining ma terial in said recess to hold' said retainer therein andmaintain said packing housing in alin ement in said casing. 10. Thepacking for shafts 4or rods comprising bearing members, a vsectionalpacking housing formed in sections'correspon'ding to the sections of thecoperating bearing members, said housinghavinga recess to supportpacking vand having a .dovetail retainer cooperating vv'itha recess insaid bearing members 'Aandmetal cast. into said recess t ho'ld saidhousing in alinement with said bearing members.

isc

11. The packing for shafts or rods -combers and retaining materialforced into said prisin bearing members, a vpacking housing recess tohold-said housing in alinement with 10 formed in sections correspondingto the secsaid bearing members. tions of the cooperating bearingmembers,

5 said housing having an alining portion col CHARLES- BEMIS REARIOK'-operating with an alining portion`v of 'said Witnesses: v

bearing members and having a retainer co- HARRY L. DUNCAN,

operating with a recess in said bearing mem- J EssIE B. KAY.

